Creating new assignment using API

Content

Hi,

We are trying to use Create an employee assignment API

{

          "BusinessUnitId": 300000001326009,         

          "ActionCode": "LOA",

          "ActionReasonCode": "UNPAID_LEAVE",

          "EffectiveStartDate": "2019-09-02",

          "EffectiveEndDate": null,       

          "AssignmentStatusTypeId": 2006,

          "LegalEntityId": 300000001326156

}

 

but we keep getting this message:

Multiple assignments cannot exist for the same work terms in the employment model 2NTSA. (PER-1531714)

We are not creating multiple assignment, just one

When I manually input the assignment in the employee record the message does not appear.

 

Any ideas how to use the API and overcome this?

 

Tx!!

Maya